1-Methyl-2-(5-methyl-1H-imidazol-4-ylmethylsulfanyl)-ethylamine 、 、 S-methyl-N-[2-((4-methyl-5-imidazolyl)methylthio)ethyl]thiouronium sulphate 在
50(H+) 、
盐酸 、
sodium hydroxide 、
苦酮酸 作用下,
以
水 为溶剂,
反应 4.0h,
以afforded N-[2-(4-methyl-5-imidazolylmethylthio)ethyl]-N'-[2-(4-methyl-5-imidazolylmethylthio)propyl]guanidine tripicrolonate (1.75 g, m.p. 173°-175°, from aqueous dimethylformamide)的产率得到
N-[2-(5-methyl-1(3)
H-imidazol-4-ylmethylsulfanyl)-ethyl]-
N'-[2-(5-methyl-1(3)
H-imidazol-4-ylmethylsulfanyl)-propyl]-guanidine